I cut out the stock muffler and replaced it with the 18" Magnaflow. Pretty easy except for I could have jacked the truck up to get some more work space. First pics are the stock setup. Second pics are where I cut the stock pipes. I cut the drivers side pipe farther forward and at the stock muffler in order to rotate it. I put a sleave over the pipe where I cut it at the front so that it wasnt just butted up. (also because I didnt cut it straight, well ok, mostly because I didnt cut it straight) With the dual 2 1/4" in and single 2 1/2" out the install is pretty easy. The tailpipe fits perfectly into the 2 1/2" side and the stock pipes from the front fit into the dual 2 1/4" side a little loose, but weldable. The sound is perfect, not too loud, but noticable when I want to hear it. It is perfect with the S&B intake.
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